1 List of United States cities by population. ^ 2  Population projection is that of the entity known since 2016 as Ciudad de MÃ©xico and previously as the Distrito Federal. ^  Population estimate is that of the Toronto census division, which consists solely of the City of Toronto.
Lens (optics) For other uses, see Lens. A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.
In addition, the video support offered through the new Rescue Lens service is designed to be integrated into the businessâs existing workflow for handling customer service issues, and includes the option to integrate with a number of top ticketing systems, including Salesforce, Zendesk, ServiceNow, Freshdesk, and others.